If you are downloading or dumping your own UMD, here is the technical data for the legitimate EUR release:
PSP UMDs are not region locked for games (movies on UMD are locked, games are not). This means a EUR ISO will run perfectly on a US or Japanese PSP or emulator. However, DLC (Downloadable Content) for Peace Walker (extra camos and AI battles) was region-locked to the PSN store. The EUR version only accepts DLC from the European PSN store, which is now defunct for PSP. Metal Gear Solid- Peace Walker PSP -EUR- ISO -v...
Since Sony discontinued the PSP’s digital storefront, playing Peace Walker today usually involves emulation or transferring a legitimate backup of your own UMD. Here is the optimal setup for the EUR ISO on modern hardware: If you are downloading or dumping your own
